Finding the Fourth Proportional to 6,398.15, 8,831.86 and 3,746.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,398.15 : 8,831.86 = 3,746.42 : x
2. Step 2: Convert to fraction form
   6,398.15/8,831.86 = 3,746.42/x
3. Step 3: Cross multiply
   6,398.15x = 8,831.86 × 3,746.42
4. Step 4: Simplify right side
   6,398.15x = 33,087,803.42
5. Step 5: Solve for x
   x = 33,087,803.42/6,398.15
6. Step 6: Final answer
   x = 5,171.46